* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-color: #27CFC3;
            --secondary-color: #111;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --white: #ffffff;
            --border-color: #e0e0e0;
            --heading-color: #1a1a1a;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Open Sans', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1fa89a 100%);
            color: var(--white);
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }

        header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, rgba(255, 255, 255, 0.1) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.1) 75%, rgba(255, 255, 255, 0.1)),
                        linear-gradient(45deg, rgba(255, 255, 255, 0.1) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.1) 75%, rgba(255, 255, 255, 0.1));
            background-size: 60px 60px;
            background-position: 0 0, 30px 30px;
            opacity: 0.3;
            z-index: 1;
        }

        h1 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin: 0;
            position: relative;
            z-index: 2;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        article {
            padding: 4rem 0;
            background-color: var(--white);
        }

        article h2 {
            font-size: 2.2rem;
            color: var(--heading-color);
            margin: 2.5rem 0 1.5rem;
            font-weight: 600;
            line-height: 1.3;
        }

        article h3 {
            font-size: 1.8rem;
            color: var(--heading-color);
            margin: 2rem 0 1rem;
            font-weight: 600;
        }

        article h4 {
            font-size: 1.4rem;
            color: var(--heading-color);
            margin: 1.5rem 0 1rem;
            font-weight: 600;
        }

        article p {
            font-size: 1.1rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
            color: var(--text-color);
        }

        article ul, article ol {
            margin: 1.5rem 0;
            padding-left: 2rem;
        }

        article li {
            margin-bottom: 0.8rem;
            line-height: 1.7;
        }

        .transition-section {
            background: linear-gradient(to bottom, var(--white) 0%, var(--light-bg) 100%);
            padding: 3rem 0;
        }

        .transition-section p {
            font-size: 1.1rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
            color: var(--text-color);
        }

        .links-section {
            background-color: var(--light-bg);
            padding: 4rem 0;
            border-top: 3px solid var(--primary-color);
        }

        .links-section h2 {
            font-size: 2.4rem;
            color: var(--heading-color);
            margin-bottom: 3rem;
            text-align: center;
            font-weight: 700;
        }

        .links-section h3 {
            font-size: 1.6rem;
            color: var(--heading-color);
            margin: 2.5rem 0 1.2rem;
            font-weight: 600;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary-color);
            display: inline-block;
        }

        .links-section ul {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0 2.5rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
        }

        .links-section li {
            margin: 0;
        }

        .links-section a {
            display: block;
            padding: 0.9rem 1.2rem;
            color: var(--text-color);
            text-decoration: none;
            background-color: var(--white);
            border-radius: 6px;
            transition: all 0.3s ease;
            border-left: 3px solid transparent;
            font-weight: 500;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
        }

        .links-section a:hover {
            border-left-color: var(--primary-color);
            transform: translateX(5px);
            box-shadow: 0 4px 12px rgba(39, 207, 195, 0.15);
            background-color: var(--white);
        }

        footer {
            background-color: var(--secondary-color);
            color: var(--white);
            padding: 2rem 0;
            text-align: center;
            margin-top: 4rem;
        }

        footer p {
            margin: 0;
            opacity: 0.9;
        }

        @media (max-width: 768px) {
            header {
                padding: 2rem 1rem;
            }

            h1 {
                font-size: 2rem;
            }

            .container {
                padding: 0 1.5rem;
            }

            article {
                padding: 2.5rem 0;
            }

            article h2 {
                font-size: 1.8rem;
            }

            article h3 {
                font-size: 1.5rem;
            }

            article h4 {
                font-size: 1.2rem;
            }

            article p, .transition-section p {
                font-size: 1rem;
            }

            .links-section {
                padding: 3rem 0;
            }

            .links-section h2 {
                font-size: 1.9rem;
            }

            .links-section h3 {
                font-size: 1.4rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.6rem;
            }

            header {
                padding: 1.5rem 1rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            .links-section h2 {
                font-size: 1.6rem;
            }
        }

        @media print {
            header {
                background: var(--secondary-color);
                box-shadow: none;
            }

            .links-section {
                background-color: var(--white);
            }
        }